Racket (formerly PLT Scheme) is a programming language suitable for implementation tasks ranging from scripting to application development, including GUIs, Web services, etc. It includes the DrRacket programming environment, a virtual machine with a just-in-time compiler, tools for creating stand-alone executables, the Racket Web server, extensive libraries, documentation for both beginners and experts, and more. It supports the creation of new programming languages through a rich, expressive syntax system. Example languages include Typed Racket, ACL2, FrTime, and Lazy Racket.

MIB Smithy SDK is a dynamic extension to Tcl/Tk (8.4+) that allows development of custom scripts for controlling SNMP agents, manipulating SMI definitions, doing conversions, and more. It is based on the core of Muonics' MIB Smithy, and the SDK supports SMIv1 and SMIv2, as well as SNMPv1/v2c/v3 with HMAC-SHA-96 and HMAC-MD5-96 authentication and DES/CBC and AES128/CFB privacy. It also provides complete read-write access to all elements of SMI/MIB Module definitions, unlike similar extensions that provide only read access to a limited subset. The SDK allows multiple discrete SMI databases and SNMP sessions, and provides all of the built-in validation and error recovery capabilites of the full product, without the visual MIB development environment.

The GNU Compiler Collection contains frontends for
C, C++, Objective-C, Fortran, Java, and Ada as
well as libraries for these languages. It is a
full-featured ANSI C compiler with support for K&R
C as well. GCC provides many levels of source code
error checking traditionally provided by other
tools (such as lint), produces debugging
information, and can perform many different
optimizations to the resulting object code.

Stunnix CXX-Obfus is a code obfuscator for C and
C++ source code. It converts source code into highly
a mangled form, making it extremely difficult for
competitors or customers to study, analyze, reuse,
and re-work, while fully retaining functionality of
the original code. It has many options to control all
aspects of code hiding, and has full support for all
syntax constructs. It is designed for multi-file projects
with mixed C and C++ source and arbitrary heavy
use of the C preprocessor. It includes advanced tools
to exclude API symbols from mangling.

Logtalk is an object-oriented logic programming language that can use most Prolog implementations as a back-end compiler. As a multi-paradigm language, it includes support for both prototypes and classes, protocols (interfaces), component-based programming through category-based composition, event-driven programming, and high-level multi-threading programming.

The Kent Retargettable Occam Compiler is a
multi-platform Occam 2.1 compiler that is
designed to allow the Occam programming
language to be used on non-Transputer
platforms. Extensions from a subset of the Occam 3 specification and from pi calculus have been added over time. As a result, the version of the language supported by the compiler is also sometimes referred to as Occam 2.5 or Occam-pi.

Stunnix JS-Obfus protects your JavaScript code
from potential analyzing/studying/reworking by
unwanted parties. It's both an obfuscator and
encoder for the JavaScript/JScript source code. It
converts the JavaScript/JScript source files into
highly mangled and obfuscated form, making it
extremely difficult to study, analyse, reuse, and
re-work for competitors or customers, while fully
retaining functionality of the original source
code, and then encodes it afterwards, making it
completely unreadable. There are a lot of options
to control all aspects of code hiding, and full
support for all syntax constructs. It is designed
to be multi-module aware.

J2ObjC is a tool from Google that translates Java code to Objective-C for the iOS platform. It enables Java code to be part of an iOS build, as no editing of the generated files is necessary. The goal is to write an app's non-UI code (such as data access or application logic) in Java, which can then be shared by Web apps using GWT, Android apps, and iOS apps. J2ObjC supports most Java language and runtime features required by client-side application developers, including exceptions, inner and anonymous classes, generic types, threads, and reflection. JUnit test translation and execution are also supported.